The TPS65400 is a high-performance integrated circuit designed by Texas Instruments, specifically targeting automotive and industrial applications that require sophisticated power management. This advanced buck converter offers a versatile and efficient solution for voltage regulation and power distribution across multiple output channels.
As a sophisticated 4-channel synchronous buck regulator, the device provides exceptional flexibility in power management, capable of delivering adjustable output voltages ranging from 0.6V to 16.2V with impressive current handling capabilities of up to 4A per channel. The integrated circuit is engineered to operate across a wide temperature range of -40°C to 125°C, making it robust for demanding environmental conditions typically encountered in automotive and industrial systems.
The circuit's key technical strengths include its adaptive switching frequency between 275kHz and 2.2MHz, which enables efficient power conversion and minimizes electromagnetic interference. Its synchronous rectification design enhances overall energy efficiency by reducing power losses during voltage transformation. The device supports input voltages from 4.5V to 18V, providing broad compatibility with various power source configurations.
Designed with automotive-grade reliability standards (AEC-Q100 certified), the TPS65400 comes in a compact 48-VQFN (7x7) surface-mount package, facilitating straightforward integration into complex electronic systems. Its positive output configuration and adjustable voltage regulation make it particularly suitable for applications requiring precise power management, such as automotive electronics, industrial control systems, and communication infrastructure.
Potential equivalent or alternative models in the same product category include Texas Instruments' TPS65261, TPS65262, and LM25066 buck regulators, which offer similar functional characteristics but may vary in specific performance parameters.
The circuit's primary advantages include high efficiency, compact form factor, wide operating temperature range, multiple output channels, and automotive-grade reliability, positioning it as a versatile solution for sophisticated power management requirements across various high-performance electronic systems.
TPS65400QRGZRQ1 (1)
TPS65400QRGZRQ1 Key Technical Attributes
Manufacturer Part Number: TPS65400QRGZRQ1
Number of Outputs: 4
Output Type: Adjustable
TPS65400QRGZRQ1 Packing Size
The TPS65400QRGZRQ1 is supplied in a robust 48-VQFN (7x7 mm) package, with an exposed pad improving thermal performance. The package ensures compact integration, featuring a 48-pin configuration designed for surface mount technology, which is compatible with high-density PCBs. Thermal characteristics are enhanced by the exposed pad, supporting efficient heat dissipation during high-load operation. The tape & reel (TR) packaging format is ideal for automated production lines, facilitating mass placement and reducing handling errors.
TPS65400QRGZRQ1 Application
This model is optimized for use in demanding automotive systems, such as infotainment, ADAS, instrument clusters, and body control modules. Its AEC-Q100 qualification guarantees reliable performance in harsh automotive environments. Additionally, its versatility extends to industrial control, telecom infrastructure, and embedded computing systems where multi-rail, efficient, step-down voltage regulation is required.
TPS65400QRGZRQ1 Features
The TPS65400QRGZRQ1 integrates four high-efficiency synchronous buck regulators, allowing for flexible multi-output voltage generation with each channel supporting independent adjustment. It operates across a wide input voltage range of 4.5V to 18V and supports output voltages from 0.6V up to 16.2V, making it ideal for modern electronic logic requirements. Each switching regulator is capable of delivering up to 4A or 2A output current, accommodating various power demands. The device incorporates a high switching frequency, adjustable from 275 kHz to 2.2 MHz, ensuring small solution size and allowing the use of low-profile external components. The step-down topology with integrated synchronous rectification significantly improves efficiency, reducing power loss. Further, comprehensive protection features such as overcurrent, overvoltage, undervoltage lockout, thermal shutdown, and short-circuit protection ensure system-level robustness.
TPS65400QRGZRQ1 Quality and Safety Features
This device is qualified to the AEC-Q100 automotive standard, verifying its endurance against automotive-grade stresses like voltage fluctuations, temperature extremes (-40°C to 125°C TJ), and vibration. The RoHS status ensures environmentally friendly compliance, and additional safety mechanisms are embedded in the IC to safeguard against thermal overload and voltage abnormalities during operation.
TPS65400QRGZRQ1 Compatibility
The TPS65400QRGZRQ1 is compatible with a wide variety of system processors and microcontrollers due to its adjustable outputs and broad input voltage range. Its compact surface-mount design supports integration into space-constrained layouts, while the standardized 48-VQFN package ensures straightforward design-in for OEMs and contract manufacturers.
TPS65400QRGZRQ1 Datasheet PDF
For engineers and buyers seeking in-depth technical details, the most comprehensive and authoritative datasheet for the TPS65400QRGZRQ1 is available directly on our website. We strongly recommend downloading the official datasheet from this page to ensure accurate component selection, optimal design integration, and up-to-date application guidelines.
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